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Документ Comparison of synchronous generators for autonomous gasoline installation system(Національний технічний університет "Харківський політехнічний інститут", 2022) Chumaсk, Vadim Vladimirovich; Kovalenko, Mykhaylo; Tkachuk, Ihor; Kovalenko, Iryna YakivnaThere are many power plants like thermal, solar, hydro, nuclear etc. but there are some disadvantage of it like CO2 emission pollution, problem of global warming requirement of fuels cost etc. To avoid such factors we developed system is biomass power plant to meet the demands of electricity and envi-ronment concern day by day price of fuels that fact to which motivate to use renewable energy. Biomass is renewable in nature, carbon neutral and has the potential to provide large productive employment in rural areas. It is considered as one of the promising sources for generation of power / energy using commercially available thermal and biological conversion technologies. The fossil fuels are depleting very fast, it is very important to replace fossil fuels with best alternative fuel modes which will be available for requirement in abundance at the same time if it is ready at one’s disposal is a eminent balance to the environment. The sanctification for this need is the bio mass power plant; on finding the major advantage of bio mass power plant is the fuel which is agricultural waste (rice husk, wood, etc.) segregation available in unnumbered tons around the world. It is very important to utilize this in the context of energy. It is also found that the sulphur content in the biomass is very less when compared with coal. The wood fuels contains very little ash (-1% or less), so increasing the ratio of wood in biomass coal blends can reduce the amount of ash that must be disposed. In biomass power plants, wood waste or other waste is burned to produce steam that runs a turbine to make electricity, or that provides heat to industries and homes. Fortunately, new technologies including pollution controls and combustion engineering have advanced to the point that any emissions from burning biomass in industrial facilities are generally less than emissions produced when using fossil fuels (coal, natural gas, oil), biomass is burned in a combustor or furnace to generate hot gas, which is fed into a boiler to generate steam, which is expanded through a steam turbine or steam engine to produce mechanical or electrical energy. In this paper were performed comparison of traditional synchronous generator with electromagnetic excitation and permanent magnet generator for autonomous gasoline installation system.Документ Mathematical simulation of brushless double stator axial flux magnetoelectric generator for small power electric complexes(Національний технічний університет "Харківський політехнічний інститут", 2023) Chumak, Vadim Vladimirovich; Kovalenko, Mykhaylo; Kovalenko, Iryna Yakivna; Tkachuk, Ihor; Tymoshchuk, OksanaThis paper presents the design of a magneto-electric generator with an axial magnetic flux (MEGAP) and a double stator, which is used for an autonomous wind-electric complex. Contactless MEGAPs have the advantages of permanent magnet generators: high reliability, efficiency; and generators with electro magnetic excitation: the possibility of adjusting the output parameters (voltage, power) using an additional excitation winding. In order to meet the require ments of a stand-alone multiplier-less wind power plant, a MEGAP structure consisting of a double stator and a single rotor has been investigated. The use of a double stator design allows more efficient use of the active volume of the generator, increasing its power and stabilizing the output voltage of the stator winding. A three-dimensional numerical field mathematical model of MEGAP was developed. The model fully takes into account the design features of the generator under study, namely the presence of an axial flow from the stator winding and the flow generated by the additional winding. With the help of the model, the external characteristics were calculated, which indicates the correspondence of the developed mathematical model to physical processes. The analysis of magnetic induction in the air gap and in other structural elements of the generator under study was carried out. The analysis of the obtained values showed that the geometric dimensions of the generator, which were previously selected, are correct and do not require significant adjustments. In the future, it allows you to use the results of this calculation for the preparation of documentation for the production of the prototype. Static characteristics of MEGAP and values of magnetic parameters in all structural elements were studied. An additional winding is used to stabilize the output voltage when the speed of rotation of the generator changes and at different loads. At a relative power of the additional winding of ≈7%, the output voltage of the generator increases by ≈24%. A more significant result can be achieved by adjusting the current of the additional winding with special controllers.